Blake Lockley questions

Blake Lockley answers

• What does this syntax mean in Swift?
• loop numbers down and up and not using recursion in python
• How to declare but not initialize a property in a Swift class
• Swift: ++ is deprecated - replaced code not working
• swift - using replaceRange() to change certain occurrences in a string
• Add a blur effect to a UIButton
• Overridden == function for Equatable type not called for custom class that subclasses NSCoding and NSObject [duplicate]
• Animation Effectiveness
• Why is Swift's fatalError's argument an @autoclosure?
• Are Swift's String, Array, and Dictionary NSObjects? Why can a struct be an NSObject?